Draft-rigging for railway-cars.



I. F. OCONNOR. i DRAFT RIGGIIIIII;l FDR RAILWAY CARS.

APPLICATION fjLED MAR. I. 1916.

Patented Marjlz, 1918.

2 SHEETS-SHEET I.

W1 TNESSES.-

J. F. 'CONNOR. DRAFT mGGlNG FOR Bmw/w CARS.

APPLICATION FILED MAR. Y. |916. l 1,258,936. Patented Mar. 12, 1918.

2 SHEETS`SHET 2.

@MW Wmv .4 TTORNEY -plied, 8MS front.

` UNTTED STATES PATENT OFFICE.

JOHN F. OCONNOB, 0I CHCAGO, ILLINOIS. ASSIGNOB T0 'WILLIAM H. MTNEB'; 0F

' "r' CRAZY, NEW YORK.

DRAFT- .HEGGING FYOB RAILWAY-CARS.

Application led March 1.

To all whom z't may concern:

Be it. known that l, JoHS F. OCoxnon, 1a citizcnlof the nitcd States,residing at Chicago, inA the county of Cook and State of Illinois, haveinvented a certain neriand useful. Improvement in Draft-Rigging forllail\\'ay-Cars, of which the following is a full, clear, concise. andexact description, reference being had to the accompanying drawings,forming:r a part of this specification.

This inrention relates to improvements in draft rigging for railwaycars.

The object of my invention is to provide a drai'r ringing oi.' eiticientoperation and durable construction.

1n the drawing forming apartof the specification, Figure 1 is in centralvertical. longitudinal section of a draft. rigging;y embodying myinvention. Fig. il is a horizontal section taken online of Fig. 1,except that in Fig. parte are positioned as in full compression of thegear, 1While the parte in their .normal position areillustrated inFig. 1. Fig. 3 is a cross' section taken on line 3-3 of Fig. 1. fig across section taken on line -l-f of Fig. 1. Fig. 5 isa" perspectiverien# of a wedge. Fig. 6 is a'perspectire View o af nlunger member.

eferring to the drawings', the numerals -T indicate draft members orparts of the' -car frame to which the drafty riggingis ap stop members:and "El-9 rear stop members, the said stop members being secured to thedraft members by suit- `able means, preferably rivets 10e-:10. The stopmembers provided with stop sl'xoul ders 'i1- 11. tions. and the frontstop member is preferably provided with the limiting stop shoulders12-ll A draft gear 13 is mounted between the draft members andoperatively connected t-o the draw bar 14 by means of the draft Yoke15,Y which is keyed to the draw bar by the coupler key 16, the saidcoupler key passing through the slot 17 in the draw bar, through theelongated slots 13 in the draft yoke, and extending at its end throughthe elongated -slots 19, inthe lfrit'lntfptop, members and adjacentportions of the draft. members. The draft gear oomprise-s the shell 20,which is preferably a. hollow cylinder in form and having at itsSpecification of Letters Patent.

a side elevation partly 'i' ront set which serre ytheir usual func-Patented Mar. 12.1918'.

191s. serial No. 81.332.

end the integral r and further comprises the contained tion members 22and springlmem'bers 23. A front. follower is indicated at Q4. Thenumeral 2.) indicates a tie platev secured to the' draft mci'nbers bysuitable means, pref# e r follower .member 21,v`

fricu erably the bolts 2G: which serres as a sup-"- port for the draftgear. bers of the draft geer include a `Wedge 27., l1-ont and rear setsf. friction shoes :8 and 2&1, re.l`- ectirclj. l.. eh ser of frictionshoes compr s prete "ably three shoes in annular arrangement. thearrangen'ient of theront .set being clearly shown in and that nl: therear set being shown in Fig. -iof the drawings. Each ot' the frictionshoes is The friction meniprovided witli'an outer friction face 128,-

which engages the internal'rictionsurface 129 of the shell and is alsoprovided with an inner edging face againstwhich lan anti-frictionrollerl is mounted. Each of the said rollers is seated against anopposed edging face provided upon' the-wedge-Q?. The Wedge,

aces *hereof and the rear set of-Wed'ging at its inner end. faces of thevfront set-and of tlie rear set are staggered in reference to each otherand in preferable are in the longitudinal axes. of the wedging The.shoes of the rear ser, are similarly arranged.

vide spaces bet-Ween them adapted arrangement the faces of one setinaposition substantially o removed-l 'r will be observed in Fig. 5,-* al'ilocl; having the front seb of Wedgingl 'Y rlfhe Wedging for thepassage of vtlie legs Bti-3.6 :of .the

plunger member 3T, spectire in Fig. 6 of plunger member 37 is providedwith ai collar 38, the inner faces 39 of i mal position of the gear,

ends 40 of the rear set of shoes. .Tf1J `legs 36 extend forwardlythroughl the'iispa'cess 35i-35, and at their ends 41 enga ethefrar ends42 of the friction shoes ofg The spring members ofthe rise an outerspring 'its rear end against, shell and at its forurardpmil the collar38 of the lug'r'l'nembell, andfurther consists o wardly seatedagainstl95. I which are, in lnor-,1 ad1acent the.- v'l fer.

an inner spnhg. *I y i the Shelli andr# vided with a head 50,seatedwithin the depression 5l at the rear end of the shell, and a 'nut 52seated Within the recess 53 with which the forward end of the wedge 27is provided. On rearward movement of the draw bar inbufing action ofthe, rigging, the coupler key slides rearwardly in` the slotsin thedraft members and front stop ist member, the front follower 24 is forcedrearwardly, the shell is. held against rearward movement by the rearstop member and the wedge against which the front follower en gages isforced rearwardly, the rearward movement being resisted by the action ofthe inner spring against the rear set, of shoes and of the outer sprl-n04against the forward set of shoes and by the frictionalengag ment of theshoes Vagainst the shell -under the spreading action of the Wedgingmember. On forward movement of the draw bar the yoke draws the draftgear forwardly, the front follower is stopped against forward movementby the frontV stop shoulders and the Wedge isv held against forwardmovement, the action of the comression resisting elements within theshell Jeing the same as in buffing movement when the shell isstationary. The arrangement of Wedge and shoes described herein, permitsa Wider distribution of the spreadin force of the wedge than is obtainedthrong the employment of one setl of shoes alone, and by reason of thestag ered rarrangement 0f the shoes. an even ictional' bearing issecured, and by the employment of the plunger member and the particulararrangement described, I am permitted toforwardly mount two compressionresista ing units, each consisting of a Wedge, friction shoes, andlresisting springs within a one chambered shell. i

These and many other advantages will be apparent from the foregoingdescription and from vthe drawing.

I claim:

1. In a friction draft gear, the combination with a friction shell, of'a pair of tandem arranged sets of friction elements .co' operable withsaid shell, each set including a plurality of friction shoes and acentral wedge; and a spring for each setof said friction elements forindividually resisting the movements of the latter.

2. In a draft gear, a shell, a plurality of sets ofv friction shoesalined therein, springs to resist the inward movement of said shoes, a,Vspreading member for the shoes, the spreading member being providml witha plurality of sets of Wcdgiug faces, the faces of one set beingstaggered in their position. 1n reference to the faces of another set.

3. In a draft gear, the combination with a shell, of front and rear setsof friction shoes, a spreading member for said shoes, a spring mountedto resist the movement of the inner set of shoes, a plunger memberengaging the front set of shoes, and a spring to resist the inwardmovement of the said plunger member.

4L. In a draft gear, a shell, front and rear sets of. friction shoeswithin the shell, a spreading member therefor, an inner spring to resistthe inward movement of the rear' set of shoes, an outerspring to resistthe inward movement of the front set of shoes, the action of the saidsinfing being transmitted to thefront set of shoes by means passingbetween the shoes of the rear set.

5. In a draft gear, a. shell, front and rear sets of friction `shoestherein, a Wedge to spread said shoes, a spring member to resist theinner set of shoes, a further* spring member to resist the outer setv ofshoes,v and 'a plunger member, the plunger member en- 6. In a draftgear, a shell, froiiit and rear l sets of friction shoes therein, aWedge to spread said shoes, a spring member to resistI the inner set ofshoes, a further spring member to resist the outer set of shoes and aplunger member, the plunger member en-' gaging the last mentioned springat v one end and the front set of shoes at the other end, the saidplunger member comprising a collar engaging the spring, and legsextended therefrom to engage the front set of shoes.

7. In a draft gear, a shell, front and re'ar sets of friction shoestherein, a Wedge to spread said shoes, a spring member to resist theinner set of shoes, a further spring member to resist the outer set ofshoes and a plunger member, the plunger member engaging the lastmentioned spring at one end and the front set of shoes at the other end,the said plunger member comprising a collar having legs passing betweenthe shoes of the rear set.

8.. In a draft gear, a shell, front and rear sets of friction shoes insaid shell, springs to resist said shoes, a wedge to spread sai shoesand antidriction rollers mounted be, tween the shoes and the' wedge, therollers engaging the rear set of shoes being staggered in their positionin relation tot e rollers engaging the front setof shoes.`

9. In a draft gear, the combination with a cylindricall shell, ofsprings, and a plurality of sets of annularly arranged frictionshoeswithin the shell, a` plunger member having legs passing between theshoes of the rear set and engaging the shoes of thel adjacent set, aspring member seated against the plunger anda further spring memberseated against the rear set of shoes.

10. In a draft gear, in combination, a shell, a plurality olE sits offriction shoes within the shell, a wedging member for each of said sets,spring members to resist the inward movement ot' the friction shoes, aplunger member, and anti-friction rollers, the anti-friction rollersbeing arranged in eqnnling in number the sets of friction slices, thebearing fares tor the said rollers` between the edging men'ibcrs andshoes being staggered in one set in reference to the adjacent ser.

11. In a draft gear, the combination with a shell haring a singlechamber for receiving the eon'n'n'ession resisting elements, of aplurality of sets of :friction shoes, each set being provided withseparate spring to resistthe inward movement thereof Within the shell.

12. 1n a friet-ion draft gear, the eombination with a. 'riction shell,oi5 a plurality of sets of friction elements arranged one behind theother, each set including a plurality of friction shoes and a wedge; aspring for each set oi' said 'friction elements for individuallyresisting movements of the latter, said sets of friction elements Ibeingangnlarly offset with respcet'to each other.

13. In a draft gear, in combination, a shell, front and rear sets offriction shoes therein, a plunger member and springs, the plunger memberhaving a collar adjacent the rear en'ds of the. rear set of frictionshoes and legs engagin the front set of friction shoes, one of tiesprings being seated against the collar of the. plunger member, anotherspring passing through the said collar and being seated against the rearset of friction shoes.

11. In a draft gear, in combination, a shell, front and rear sets offriction shoes therein, a spreading member therefor, a plunger memberengaging the front set of shoes at one end and extending beyond the rearset of shoes at the other end, a spring seated against said plungermember, a. washer seated against the rear set of friction shoesforwardly of the rear end of the plunger member, and a spring seated atits forward end against said Washer.

15. In a draft gear, a shell, a plurality of sets of friction shoestherein, a Wedge Within the shoes having a plurality of sets oi Wedgingfaces thereon, there being one set for each set of friction-shoes, eachset of tion shoes being provided with a separate spring to resist theinward movement thereof.

16. 1n a friction gear, the combination with a friction shell, of twosets of friction mechanisms coperable tl'iereu-'iidn each set inchnlinga spreader and a plurality of friction shoes, the wedge faces of onesetl of friction mechanism being angularly olfse'U relatively to thoseoft the other set, and spring means for resisting movement of each ofsaid sets of friction mechanisms relatively to the shell.

In Witness that I claim'the foregoing I have hereunto subscribed my namethis 31st day of Jan. 1916.

JOHN OCONN OR.

